620250521 has 16 divisors (see below), whose sum is σ = 702725760. Its totient is φ = 542277120.

The previous prime is 620250481. The next prime is 620250529. The reversal of 620250521 is 125052026.

It is not a de Polignac number, because 620250521 - 2¹⁸ = 619988377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (620250529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80201 + ... + 87593.

It is an arithmetic number, because the mean of its divisors is an integer number (43920360).

Almost surely, 2^620250521 is an apocalyptic number.

It is an amenable number.

620250521 is a deficient number, since it is larger than the sum of its proper divisors (82475239).

620250521 is a wasteful number, since it uses less digits than its factorization.

620250521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7696.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 620250521 is about 24904.8292706455. The cubic root of 620250521 is about 852.8167321812.

The spelling of 620250521 in words is "six hundred twenty million, two hundred fifty thousand, five hundred twenty-one".